Jacqueline “Chacha” Durazo ’14 is a contestant for Miss Boston this year.

Jaswanth Madhavan—The Tech

An automated network 3D printer made by Alfonso A. Perez ’13, Forrest W. Pieper ’14, Christopher M. Haid ’14, and Mateo Pena Doll ’14, was on display at Techfair on Monday, February 4. It has the ability to network and remotely connect to computers.

CHRISTOPHER A. MAYNOR—The Tech

A bar-coded sheet of paper called a “vision code” was placed over each robot as part of the competition’s vision positioning system.